Trump’s transition team reached out to GOP members of Congress in an effort to have them add funding for the massive project in an appropriations bill within the next few months, according to CNN.

The move comes after Trump has offered conflicting statements throughout the campaign about how such a wall would be paid for.

During the campaign Trump repeatedly whipped crowds into a frenzy with a call-and-response chant of “Build the Wall,” followed by Trump asking “Who’s going to pay for it?” and the crowd responding “Mexico.”

The president elect’s own transition website puts the wall as priority one on his 10 Point Plan for immigration.

“Begin working on an impenetrable physical wall on the southern border, on day one. Mexico will pay for the wall,” it states.

The statement, however, links to a document with caveats such as “There are several ways to compel Mexico to pay for the wall” and that they could just reimburse us for the cost.

Republicans on Capital Hill cited a 2006 law signed by former President George W. Bush that authorized construction of a border wall as justification for the funding, according to Politico.

The cost of a wall across the border is expected to cost up to $14 billion for construction alone.